NCD980602163_19970409_Warren County PCB Landfill_SERB C_Results for analysis of 25 OVS tubes for Arochlors 1242, 1254 and 1260-OCR

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0 "' Southern Testing Research laboratories, Inc.
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3809 Airport Drive
April 9, 1997
Mr. Pierre Lauffer
North Carolina DEHNR
P.O. Box 27687
Raleigh, NC 27611
Dear (VU . Lauffer:
[phone] • Fax: [phone][ Wilson, :"JC 27896
Attached are the results for the analysis of 25 organic versatile sampler (OVS) tubes
for Arochlors 1242, 1254, and 1260. We recei ed 25 samples from you on February 21,
1997 and 6 samples on February 25, 1997. Th samples were analyzed using NIOSH Method
No. 5503 with a few modifications.
The first modification was the separate alysis of the filter and the front sorbent
sections. This was done at your request to allo v differentiation of the particulate and vapor
phases. We also made a series of modification for the purpose of improving the detection
limits of the method. They include: the use of capillary chromatography for separation
(Alltech SE 54, 30 m x 0.32 mm x 0.25 µm), d concentration of the extracts from 2 mL to
100 µL. We also added dibutyl chlorendate as an internal standard to normalize the
concentration step.
For quantitation of the chromatograms, e chose eight major peaks for each of the
three arochlors. The sample results are listed i Tables 1 and 2. In Table 1, we have listed
the results as total ng found and in Table 2, as air concentrations based on the volumes you
provided. We only detected arochlors in ones pie. W-13017 (STRL No. 6618F2). The
amount shown for the sorbent includes both th front and back sections, even though they
were analyzed separately. The back section co tained 845 ng of Arochlor 1242, 82. 7 ng of
Arochlor 1254, and Arochlor 7.3 ng 1260. It i apparent that there was significant
breakthrough of some of the 1242 components for this sample.
Our limit of quantitation is about 1 ng or Arochlors 1254 and I 260, and 5 ng for
Arochlor 1242. These were verified by succes ful recovery of laboratory spikes at these
levels.
We appreciate the opportuinity to work with you on this project. Call me if you have
any questions.
Sincerely,
6.Baug
Ch~mic.il and \1icrobiol()f,(ical Analyses: Em-ironmenlal • I ustrial Hygiene • A2rochemical • Foods • Phar~aceuticals _
May-06-97 03:2BP Southern Testing Labs 919 237 9341 P .. 03 .
Table 1. Sample Resu rs as Total 1\anograms
Arochlor 1242 (n~ ) Arochlor 1254 ( ng) Arochlor 1260 (ng)
STRJ., DENHR I.D. I.D. Filter Sorben ~ Filter Sorbent Filter Sorbent
W-13011 6618Fl < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
l W-13017 6618F2 3.2 2,630 3.1 738 2.8 712
W-15400 6618F3 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
W-15277 6618F4 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
W-15395 6618F5 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
W-13013 6618F6 < 5.0 < 5.0 < 1.0 < 1.0 <·l.O < 1.0
W-15142 6618F7 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
W-15142-per 6618F8 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
W-15396 6618F9 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
\V-l 5398 6618FI O < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
'½··-1 I 706 6618Fl 1 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
Lab Blank 6618Fl2 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
Field Blank 6618Fl3 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
Fence South 6618F14 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
Cone South 6618Fl5 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
Center Vent 6618Fl6 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
Vent 6618FI 7 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
I 16' from 6618Fl 8 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
Fence
Fence 66 l 8Fl 9 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
15398 6692Fl < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
13017 6692F2 < 5.0 < 5.0 < l.O < 1.0 < 1.0 < 1.0
15394 6692F3 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
15401 6692F4 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0
13013 6692F5 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < l.0
15400 6692F6 < 5.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0 I
' I
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May-06;97 03:29P Southern Testing Labs 919 237 9341
Table 2. Results as Air Concentrations
DENHR I.D.
W-13017
\V-15400
W-15277
W-15395
W-13013
W-15142
W-15396
W-11706
15398
STRL
I.D.
6618F2
6618F3
6618F4
6618F5
6618F6
6618F7
6618F9
6618F11
6692Fl
Arochlor 1242
(ng/m3)
Filter
2.5
< 3.6
< 5.3
< 5.4
< 3.9
< 4.5
< 3.2
< 5.4
< 3.8
Sorber t
2090
< 3.6
< 5.:
<.., 4 J.
< 3.:
< 3.
Arochlor 1254
(ng/m3)
Filter Sorbent
2.5 588
< 0.8 < 0.8
< 1.1 < l.l
< 1.1 < 1.1
< 0.8 < 0.8
< 0.9 < 0.9
< 0.7 < 0.7
< I.I < 1.1
< 0.8 < 0.8
Arochlor 1260
(ng/m3)
Filter Sorbent
567
< 0.8 < 0.8
< 1.1 < l. l
< l.l < l. l
< 0.8 < 0.8
< 0.9 < 0.9
< 0.7 < 0.7
< 1.1 < 1.1
< 0.8 < 0.8
Note : Concentrations are calculated based on ir volumes supplied by DENHR.
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